Sole-molding press



April 21; 1925. 1,534,052

F. E. BECKMAN SOLE MOLDI NCr PRES 5 Filed March 16, 1920 2 heets-Sheet l April 21, 1925. 1,534,052

.5 E. BECKMAN 4 SOLE MOLDING PRESS Filed March 16, 1920 2 h ets-Sheet 2 Mani)? "@1855 224mm Patented Apr. 21, 1925.

tries.

FRANK n. nnoniuan, or nAvnnnILL, massaon'osnrrs, AssIsNon T0 Unrrnn 'snon Ii IACHINERY CORPORATION, OF PATERSON, NEW

JERSEY.

JERSEY, A CORPORATION or new SOLE-MOLDING PRESS.

Application filed March 16, 1920. Serial No. 366,265.

To aZZwho m it may concern:

Be it known that I, FRANK E. Brennan, a citizen of the United States, residing at 'Haverhill, in the county of Essex and State of Lassachusetts, have invented certain new and useful Improvements in Sole-Molding Presses; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to presses for molding soles and is disclosed in connection with a machine for molding; or breaking down the margins of soles for turn shoes. The machine is designed for performing the speciiio operation of molding the margin about the toe end of a turn sole, to facilitate the first lasting and sewing operations the mold ing of the adjacent portions of the margin being performed on another machine.

Heretofore it has been the practice to break down the margins of turn soles by feeding the margin of the sole progressively past the molding tools of'a machine such, for example, as the Goodyear power molding machine disclosed in Letters Patent of the United States to William O. lileyer No. 1,110,637, granted September 15, 1914. It has been found to be difficult to feed, through a machine of this type, the extremely pointed toes 011 the soles now in vogue, commonly called peaked toe soles, without distorting the toe and thus spoilin the lines of the shoe when finished.

The principal object of the present invention is to eliminate all danger of distorting the toe of asole during the operation of breaking down the margin and an ancillary objectis to correct any distortion that may have occurred when the sole was rounded or fitted.

Accordingly an important characteristic of the invention is found in the construction and arrangement of the devices for molding the toe end of the sole. In the preferred embodiment of the invention these devices comprise a mould couplecomp'ising male and female moulds so shaped as to produce about the toe of a sole placed therebetween, an accurately moulded margin according with the size and style of the sole. Furthermore, because of the confinement of the sole between the moulds, a sole which may be out of shape because of inaccurate roundin'g is reshaped to theexact outline required for perfect shoemaking. The moulds are of such proportions as to break down the margin ofthe sole for a distance of about one and one-half inches from the tip of the toe, i. e., to about the tip line. The adjacent portions of the r'nugin, preferably but not necessarily after this operation, are -moulded by another machine which may be of the type disclosed in said patent of l Villiam C. Meyer hereinbefo re referred to. The soles are in temper when operated upon by the toe molding' inachine and are left under a brief sustained pressure to permit the moulded margin to set. Thus after removal from the machine the moulded soles may be handled without harm to the toe end since the broken down margin is stiff and immovable. Preferably the machine is designed to support several mould couples each for receiving a sole of different width and thus avoid too frequent adjustments.

To the accomplishment of this object and such others as may hereinafter appear. as will be readily understood by those skilled in the art, the invention comprises the features and combination of parts hereinafter described and then. particularly pointed out in the appended claims.

The features of the invention. herein claimed will be bestunderstood from description of the preferred embodiment thereof illustrated in the accompanying drawings, in which:

Figure 1 is 'afront elevation of the working parts of the machine; Fig. 9. is a side elevation of the mould supporting members of the machine; Fig. 3 is a plan of the upper or male mould supporting head, detached; F ig. l is a plan of the lower or female mould, detached; Fig. 5 is a perspective of the fore part of a turn sole after its toe has been moulded; and F ig'. 6 is a cross-section of the sole shown in F ig. 5 on the line 66 of said figure.

In the embodiment of the invention illus trated in the drawings the sole moulds have been applied to a press of the type disclosed in Letters Patent of the United States No. 514,364, granted Feb. 6, 1894, on the applir-ation of Lorenzo P. Hawkins. As in the machine of said Hawkins patent a table 1.0, supported at a convenient height, is provided with a base block 12 having oppositely disposed cars 14:. The lower or female mould block .16 is removably secured to the base block by screws 17 threaded into delinitely located receiving bores in the ears l-l.

Above the mould block 16 is avertical bearing 18 carried at the forwardend of the overhanging frame 20 which rises from the table at the rear end of the base block 12. A plunger 22 is fitted to slide in this hearing, tothe upper end of which is suitably jointed the rod 24: of an eccentric strap 26 embracing an eccentric 28 on the forward end of a power shaft 30 driven by a pulley 32. Two journals for the shaft 30 rise from the frame 20 of which the forward one 3% only is shown. The revolution of the shaft 30 is controlled by a clutch (not shown), operated by. a treadle attached to the treadle rod 36, designed to provide for a sustained pressure on the sole placed between the moulds as is common to presses of this general type.

The upper or male mould is secured to the lower face of a spilt block or head 38 having the construction shown in Figs. 1 and-'3, a bolt 4:0 servingto clamp it on the lower end of the plunger 22. A. centedng 'pin t2 (dotted lines Fig. 1) head on the plunger and a pins la engage bores as in the lower block 16. The maleinould is thus exactly centered over the female mould.

In order toavoid frequent adjustment for size or style it is desirable to provide each mouldblock with a series of moulds, each couple differing from' the others. illustrated embodimentflof the invention each block is'pro'vided with three moulds pair of guide representing three different sole widths.

The lower block 16.is formed in one piece the femaleemoulds being produced by recesses {18 of the required formation, i. 'e., generally triangular, in its upper face. The

male moulds 50 are independent of each other, each mould being received and located .on thelower face a centering pin 52 '(dotted lines Fig. 2) and removably heldin positionby set screw 5 1 passing through an car 56 which bears against 'thefro'nt face ofthe block 38.

The machine 'will'be equipped with such additional mould couples as may be required for all the styles and widths used in any particular factory and it will be observed that the mountings described provide for speedy interchangeability. This forms an important feature of the invention.

The molds are sodesigned as to break down the margin 'of'th'e-sole to'the shown in Figs. 5 and .6. For good: shoemaking the break on the grain-side of a turn sole should shoulder on the flesh side. Accordingly the.

inner wall 58 (Fig. 4) of the female mciuld the shoulder.

serves to locate the V tron ofthe sole mould In the of the block 38 by extent befdire'ctly' oppositethei V k is required; Neither has, the ,wifthinde corresponds in shape to the shoulder on the sole and its height is equal to the depth of The outer wall 60 corresponds in shape to the edge of the sole.

This feature is not essential but it'is desirable since this wall serves as a gage to correctly locate the toe of the sole above the cavity formed by the inner wall 58. The lower surface .62. (Fig. 1) of the male mould is so proportioned as to form the break on the grain side opposite the shoulder on the flesh side when the descent of the plunger 22 forces the two moulds together. "The oblique walls 59 and 61 of the two moulds are of such a-ngularity to the horizontal surfaces as may be required to give the desired'olfset to themargin of the sole which may have been shouldered for incorporation in eithera mock weltor a feather edged turn shoe.

. In using the press a turn sole', which has shoulder for first been fitted with a marginal by a suitable stock fitting macliinesiich, example, as disclosed in Letters Patent of the United States No. 1,030,704 granted June 25, 1912, on the application of Frederic Bertrand is placed with its toe end within and in contact with the wall 60 of the proper sized lower mould. The body porextends outwardly through the open end of the mould recess and may beheld by the operator without danger of injury to him. The clutch is then thrown in and the upper mould 50 descends forcing the shoulder down within the lower wall 58 thusreshaping the toe should this be necessary. The oblique walls59 and 61 of the lower and upper moulds grip the margin outside the shoulder and cooperate to break it down to the extent permitted by their obliquity to the horizontal surfaces of the mould couple. It will be observed, as shown more particularly at the open end of the mould so asto avoid an in urious break at the up line and. pro

vide for a merging of the moulded margin. into the unmoulded -Inarg1n to the rear. As hereinbefore explained the.

thereof. portions of the margin opposite the shoulder at be broken down in any convenient manner,

preferably by the progressive pressure type himself I to recognize the advantage of performing this operationv wlth closed moulds of. the exact shape of the too ,which effectually prevent},

distortion and area) reshape the, toe if this by Fig. 4, that the ends of the female mould walls are flaredthe opposite sides of the sole may sole having the moulded to the a machine for margins of peaked toe soles, partly by a molding pressure and partly by a progressive pressure, been practiced prior to the production of the novel turn sole illustrated by Fig. 5.

The novel method or" making soles above discussed is not claimed herein, but is fully set forth and claimed in United States Letters Patent No. 1,434,521, granted Nov. 7, 1922, on my application.

The nature and scope of the present invention having been indicated and the preferred embodiment of the invention having been specifically described, What is claimed as new, is

1. A molding machine for breaking down the margin at the toe end only of soles having, in combination, a female mould having a Wall shaped to receive the toe end of the sole and accurately lit it, a male mould opposite the female mould at the grain side of the sole, said moulds having co-operating oblique margin molding Walls, and means for causing relative approach of said moulds to shape said margin of the sole by pressure between said oblique Walls to facilitate the entrance of the needle in the sewing operation.

2. A molding machine for breaking down the margin at the toe end only of previously shouldered turn soles having, in eon'ibination, a female mould having a Wall shapet to receive the toe end of the sole and accurately fit about the shoulder thereof, and a for correctly locating said toe end relative to said Wall, a male mould opposite the female mould at the grain side of the sole, said moulds having co-operating oblique margin moulding Walls, and means for causing relative approach of said moulds to shape said margin of the sole by pressure between said oblique Walls.

iii molding machine for breaking down the margin at the toe end only of previously shouldered turn soles having, in combina- 111011, a female mould generally triangular in plan and open. at its base the Wall of which comprises a lower, vertical, shoulder engaging portion and an upper, oblique, margin engaging portion, a solid male mould having an oblique margin engaging Wall adapted to be seated Within the oblique Wall oi? the female mould, and means for causing relative approach of said moulds to shape said margin of a soleinserted therebetween by pressure between said oblique Walls.

a. A press for molding the margin at the toe end only of soles having, in combination,

a bed supporting a female mould generally triangular in plan and open at its base the Wall of which comprises a lower, vertical portion and an upper, oblique, portion; a plunger supporting a solid male mould having an oblique margin engaging wall adapted to be seated Within the oblique wall of the female mould; and means to actuate said plunger to force a sole laid upon said female mould into said mould and shape said margin by pressure between said oblique Walls. 5. A. press for molding the margin at the e end only of soles having, in combination, a bed supporting a female mould generally triangular in plan and open at its base the Wall of Which comprises a lower, vertical portion, an upper, vertical, edge and a connecting oblique, portion; a plunger supporting a solid male mould having an oblique, margin engaging Wall adapted to be seated Within the oblique Wall of the female mould, and means to actuate said plunger to force a sole, located Within the female mould by engagement 01 its toe end With the upper, vertical portion thereof, into said mould and shape said margin by pressure between said oblique walls.

6. A press for molding the margin at the toe end only of peaked toe soles having, in combination, a female mould generally triangular in plan and open at its base to permit the body of the sole to extend there through; a male mould of similar form; said moi ds having oblique Walls to engage the margin of the sole each side and cooperate to break down said margin; and means for causin relative approach of said moulds.

7. A press for molding the margin at the toe end only of turn soles having a female mould shaped to receive the end of a sole, a male mould of similar form, said moulds having oblique Walls to engage the margin of the sole at each side and co-operate to break down saic. margin, and guiding and operating means for causing relative approach and registration or said moulds.

8. press for molding the margin at the toe end only of es having a female mould member constructed and arranged to accommodate sole ends of a range of Widths, a male mould member of similar characteristics, said mould members having oblique walls to engage the margin oi the sole at each side and co-operate to break down said margin, and means for causing relative approach of said moulds.

FRANK E. BECKBZIAN. 

